Details

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BUY 74HC245 https://www.utsource.net/itm/p/12533234.html

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	VCC	2.0	-	6.0	V
Input Low Voltage	VIL	-	0.8	-	V
Input High Voltage	VIH	-	2.0	-	V
Output Low Voltage (IOL=25mA)	VOL	-	0.1	0.35	V
Output High Voltage (IOH=-25mA)	VOH	2.4	-	5.0	V
Propagation Delay Time	tpd	-	10	25	ns
Power Dissipation	PD	-	-	100	mW
Operating Temperature Range	TA	-40	-	85	掳C

Instructions for 74HC245 Octal Bus Transceiver

1. Power Supply:

   • Connect V_CC to the positive power supply (2.0V to 6.0V).
   • Connect GND to the ground.

2. Direction Control:

   • The direction of data transfer is controlled by the DIR pin.
   • When DIR is high, data is transferred from A to B.
   • When DIR is low, data is transferred from B to A.

3. Output Enable:

   • The OE (Output Enable) pin controls whether the outputs are active or in high-impedance state.
   • When OE is low, the outputs are enabled.
   • When OE is high, the outputs are in high-impedance state.

4. Input and Output Connections:

   • Connect the input pins (A1 to A8) to the source of data.
   • Connect the output pins (B1 to B8) to the destination of data.

5. Propagation Delay:

   • The propagation delay time (t_pd) is the time it takes for a change in the input to affect the output. It typically ranges from 10 to 25 nanoseconds.

6. Temperature Considerations:

   • Ensure that the operating temperature range is between -40掳C and 85掳C to avoid damage to the device.

7. Power Dissipation:

   • The maximum power dissipation (P_D) is 100 mW. Ensure that the device is not subjected to excessive power dissipation to prevent overheating.

8. Handling Precautions:

   • Handle the 74HC245 with care to avoid static discharge, which can damage the device.
   • Use proper anti-static precautions when handling and storing the device.

By following these instructions, you can ensure reliable operation of the 74HC245 octal bus transceiver in your circuit.

(For reference only)